EP2674190B1 - Elektrodenstruktur für eine multipolare Detektions-/Stimulationsmikrosonde zur Implantation in ein Herz- oder Hirngefäß - Google Patents
Elektrodenstruktur für eine multipolare Detektions-/Stimulationsmikrosonde zur Implantation in ein Herz- oder Hirngefäß Download PDFInfo
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- EP2674190B1 EP2674190B1 EP20120194864 EP12194864A EP2674190B1 EP 2674190 B1 EP2674190 B1 EP 2674190B1 EP 20120194864 EP20120194864 EP 20120194864 EP 12194864 A EP12194864 A EP 12194864A EP 2674190 B1 EP2674190 B1 EP 2674190B1
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- electrical
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2491—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by conductive cams or wedges
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/056—Transvascular endocardial electrode systems
Definitions
- the invention relates generally to "active implantable medical devices" as defined by Council Directive 90/385 / EEC of 20 June 1990.
- a microprobe of detection / stimulation intended to be implanted in venous, arterial or lymphatic networks in order to deliver an electrical pulse and / or to detect an electrical activity.
- Such a probe can in particular be used in cardiology, in particular to be implanted in the venous network of the coronary sinus in order to stimulate a left or right cavity of the heart.
- Microprobes are, however, useful in many other medical applications, whenever one is in the presence of a venous, arterial or even lymphatic network, such as in particular the venous or arterial cerebral network.
- electrical stimulation has led to significant advances in neurology in the field of neuromodulation, which involves stimulating target areas of the brain for the treatment of disorders such as Parkinson's disease, epilepsy and other neurological diseases.
- Such a technique allows a less invasive approach to these treatments and above all a superior efficacy of the treatments administered.
- the size of the current implantable probes being typically of the order of 4 to 6 French (1.33 to 2 mm), it would be desirable to be able to reduce this diameter to less than 2 French (0.66 mm) to open new perspectives of medical applications in areas that have not been explored so far, given technological constraints.
- Such a micro-microprobe size would make it possible to reach very small venules, inaccessible today with devices of greater size.
- Such a microprobe must also be able to navigate easily in the arterial or lymphatic venous networks by presenting a sufficient flexibility to be able to be introduced in networks of vessels presenting strong tortuosities, anastomoses, etc.
- Probes have been proposed comprising a microcable consisting of a central conductor intended to be connected to the generator of the implant, this conductor being coated with an electrically insulating sheath.
- the central conductor is full, the diameter of the spiral conductors used up to now being incompatible with the required diameter.
- These probes monopolar, also have on their active part one or more electrodes detection / stimulation all electrically connected to the central conductor, and intended to come into contact with the wall of the target vessel.
- a first technique for producing the electrodes of such probes described for example in the EP 2 455 131 A1 (Sorin CRM SAS), consists in punctually stripping the insulating sheath so as to expose the microcable in one or more points. The stripped portions together constitute a network of electrodes connected in series to multiply the stimulation points and thus ensure multizone diffusion of the stimulation energy delivered by the implant.
- This same document also proposes, in a variant, to make the active microprobe part by successively and alternately threading on the microcable insulating tubes and conductive electrodes in iridescent platinum, in the form of rings.
- the insulating tubes for example made of polyurethane, are glued to the microcable and the iridium platinum electrodes are crimped directly onto this microcable.
- Still another technique consists in applying to the microcable a coating of insulating polyurethane glue, leaving locally uncoated, conductive surfaces in reserve.
- a conductive coating for example a titanium nitride alloy or a carbofilm-type carbon deposit. (registered trademark) by a sputtering technique such as that described in particular in the US 5,370,684 A and US 5,387,247 (both in the name of Sorin Biomedica SpA), to protect the exposed cable from corrosion.
- the microcable must be perfectly isolated from any contact with the environment of the microprobe, hence the additional conductive coating of NiTi or carbon on the electrode areas or the crimp on the microcable of platinum rings iridium (noble material, insensitive to corrosion).
- This isolation constraint of the microcable with the external medium, in particular in the region of the electrodes, must be respected i) over the expected lifetime of the microprobe, ie ten years, and ii) despite all the mechanical stresses that the microprobe is likely to undergo, typically 400 000 000 bending stress without rupture, this figure corresponding to the average number of heartbeats over the lifetime of the microprobe. Compliance with these conditions is essential for the microprobe to be implanted permanently in the body, typically in a coronary vessel.
- a microprobe of stimulation by the venous network can be the seat of deformations under curvatures much higher than those which undergoes a conventional probe, insofar as it must follow the deformations of the veins. This causes greater stress and makes its resistance to fatigue more restrictive.
- the inner face of the ring is in mechanical contact with the surface of the sheath, with interposition of the insulating material of the sheath between the microcable and the ring in regions on either side. the perforation zone of the sheath.
- a multipolar probe in particular to operate a bipolar stimulation by sending pulses between two electrodes located at the end of the probe, or between two electrodes of straight ventricular probes, instead of doing so. between an electrode (or series of electrodes) and the generator box, as with a monopolar probe.
- US 2008/0114230 A1 and US 7,364,479 B1 describe electrode support structures for multipolar probe.
- a multipole detection / stimulation probe intended to be implanted in a venous, arterial or lymphatic network
- this probe comprising, in a manner known per se, in particular according to FIG. US 2008/0114230 A1 mentioned above: at least two microcables each consisting of a solid central conductor intended to be connected to an active implantable medical device generator, and a sheath made of an insulating polymer material surrounding the central conductor on its periphery and on its length ; at least one detection / stimulation electrode intended to be electrically connected to a central conductor of a microcable and to come against a wall of a target vessel of said venous, arterial or lymphatic network; and means of electrical connection between the electrode and a central conductor.
- the outer diameter of the probe is at most equal to 2 French (0.66 mm), and the electrode comprises a cylindrical metal ring having a longitudinal electrical connection slot adapted to receive a microcable intended to be connected to the ring, and at least one longitudinal electrode passage lumen.
- the longitudinal electrode passage lumen is adapted to receive at least one microcable not connected to the ring; and the electrode also comprises means for electrical connection by perforation comprising at least one guide tunnel transverse to the ring, formed between the periphery of the ring and the electrical connection light, and an electrical connection slide able to slide in the guide tunnel and provided with an inner end shaped to perforate the sheath of the microcable in the light so as to make electrical contact between the ring and the central conductor of the microcable via the connection drawer mounted and held tight in the tunnel guidance.
- the probe according to the invention is multipole, it is therefore with a plurality of microcables whose number depends in particular on the number of poles considered, and these microcables are inserted through lights arranged on a plurality of metal rings arranged on along the probe and forming electrodes.
- Each ring comprises a connection light receiving the microcable whose central conductor must be electrically connected to the ring and other microcables, which must not be connected to the ring, through the latter simply by the so-called electrode crossing lights.
- connection slide whose forced sliding movement in the guide tunnel causes the perforation of the insulating sheath of the microcable through the internal end of the drawer .
- the technique of electrical connection by perforation guarantees the tightness around the microcables and their protection against electrocorrosion, without the need to use special means of NiTi conductive coating type or carbon.
- the physical continuity of microcables is ensured and gives the entire probe excellent mechanical strength even under high curvature, for example the crossing of vessels with high tortuosity and anastomoses.
- the slide axis of the connection slide passes through the center of the connecting lumen. It is also advantageous that the probe of the invention comprises two opposite connection drawers. In addition, in order to avoid formation on the periphery of the metal ring of protuberances which would affect the isodiametric profile of the probe, the connection drawer in the perforation position is completely retracted inside the guide tunnel.
- the electrode feed light receives a plurality of microcables not connected to the ring, for a limited space requirement.
- the probe comprises, at the periphery of the ring, at least one zone of non-through longitudinal grooves. In this way, peak effects are created which generate better transmission of electrical impulses to tissues.
- the invention provides that the latter is covered with a collective outer sheath of heat-shrinkable insulating material, windows being cut in this sheath around detection / stimulation surfaces.
- the ring which in addition can carry longitudinal grooves.
- a flexible adhesive seal may be deposited at the ends of the ring, and a chamfer or a countersink is provided at each end of the ring, in particular to better manage the stiffness gradient ring / body of probe.
- a cylindrical metal ring 10 constituting a detection / stimulation electrode for a multipolar probe which, in the proposed embodiment, has three microcables respectively referenced 21, 22a and 22b (in practice, the number of microcables varies generally between two and four).
- This electrode is intended to be electrically connected to one of the microcables and to come into contact with a wall of a target vessel of the venous, arterial or lymphatic network.
- the ring 10 is made of a material that is insensitive to the phenomenon of electrocorrosion, such as an iridium platinum alloy (typically 90/10) or of another noble metal, such as palladium or tantalum.
- an iridium platinum alloy typically 90/10
- another noble metal such as palladium or tantalum.
- each electrode or group of electrodes being connected to the same pole of the implanted generator, that is to say each ring or group of rings. being connected (s) to a microcable itself connected to the pole, the whole structure forming a single-body type probe.
- the technical difficulty is then to establish an industrialized reliable connection with that of the microcables that constitutes the conduction line, while preserving the isolation of the other unconnected microcables, all to be contained in a diameter of 1 to 2 French (0 , 33 to 0.66 mm) to preserve the benefits of such devices, for example the passage of anastomoses to establish a left ventricular stimulating system via two distinct areas.
- the proposed solution as illustrated on Figures 1a, 1b and 1c , consists in that the cylindrical metal ring 10, of diameter substantially equal to 1 to 2 French (0.33 to 0.66 mm), comprises three longitudinal slots 11, 12a and 12b extending parallel to the axis of the ring 10.
- one of these lights receives the microcable 21 intended to be connected to the ring 10 and to a pole of the generator.
- microcable is normally a non-bare microcable, to benefit the best of all the advantages of the invention, but alternatively it can be stripped locally, the means that will be described are then intended to make the contact directly on the stripped region of the cable without perforation of the insulation.
- the other two longitudinal lumens 12a and 12b are called “electrode feedthroughs” in that they allow the microcables 22a and 22b, which must not be connected to the ring 10, to pass through it.
- connection light 11 has a circular opening of diameter substantially equal to that of the connected microcable 21 (with a minimum set of mounting, related to the dimensional tolerances of the components).
- the electrode feed-through lights 12a and 12b may have a diameter greater than that of the unconnected microcables 22a and 22b, in order to avoid any risk of damage to the microcables insulation in the immediate vicinity of the ring ; this increase in diameter also makes it possible to insert an additional protective insulating sheath (not shown) into the electrode bushings, which also makes it possible, from a mechanical point of view, to contribute to the management of stiffness gradients in the immediate vicinity of the ring.
- the microcables 21, 22a and 22b are formed of a solid central conductor 23 surrounded by a sheath 24 of insulating polymer material.
- the central conductor 23 is advantageously a multi-wire structure in the form of a strand of a plurality of conductive strands 231 of small diameter.
- a strand comprises seven strands 231 of 33 microns in diameter for a total diameter of 100 microns.
- a strand 231 has a bi-material structure, namely a platinum core and a stainless steel envelope made of an alloy of the MP35 N type (35% Ni, 35% Co, 20% Cr and 10% Mo ) or MP35 NLT, whose essential advantage is its extreme fatigue endurance.
- the reduction in diameter of the single strands reduces the stress applied to each of them, and therefore increases the fatigue performance of the strand structure.
- Such a structure, without internal lumen and with several strands twisted together, is able to provide both endurance against cardiac movements and resistance to stresses related to the pose.
- the MP35N can be coated with platinum in order to guarantee complete protection of the electrical junction against electrocorrosion, in case the sealing at the puncture through the insulation, or between the connection slide and the guide tunnel, or even the sealing of the possible bonding, would not be sufficient.
- the insulating sheath 24 As regards the insulating sheath 24, this must satisfy the following characteristics: fatigue resistance, electrical insulation, long-term biocompatibility, biostability, possibility of transformation and compatibility with the central conductor 23.
- the materials that can be used in this context are in particular the materials of the group comprising: polyurethanes (PU), polyesters (PET), polyamides (PA), polycarbonates (PC), polyimides, fluoropolymers, polyether- ether-ketone (PEEK), poly-p-xylylene (parylene) and polymethylmethacrylate (PMM).
- PU polyurethanes
- PET polyesters
- PA polyamides
- PC polycarbonates
- PEEK polyether- ether-ketone
- parylene poly-p-xylylene
- PMM polymethylmethacrylate
- materials with high chemical inertness such as fluoropolymers, which also have a very good quality of insulation.
- materials of the group comprising: PTFE (polytetrafluoroethylene), FEP (perfluorinated propylene), PFA (perfluoroalkoxy copolymer resin), THV (tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride), PVDF (polyvinylidene fluoride), EFEP (ethylene propylene fluorinated ethylene) and ETFE (ethylene tetrafluoroethylene).
- PTFE polytetrafluoroethylene
- FEP perfluorinated propylene
- PFA perfluoroalkoxy copolymer resin
- THV tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride
- PVDF polyvinylidene fluoride
- EFEP ethylene propylene fluorinated
- the methods for producing the insulating sheath 24 on the central conductor 23 depend on the materials used, for example: coextrusion on the conductor (for PU, PA, PEEK, polyimides and fluoropolymers); dip deposit in a solution (for PU, PA and polyimides); heating of a heat-shrinkable tube (for PET and fluoropolymers); chemical deposition by gas (for parylene); plasma treatments to improve adhesion between layers.
- the invention has been illustrated with a single layer of the same material sheathing the microcables 21, 22a and 22b, it is possible to provide several successive layers forming the sheath 24, for example a layer of PET and a layer of ETFE.
- the insulating sheath 24 has a typical thickness of 5 to 20 microns.
- the electrical connection between the ring 10 and the microcable 21 is made by perforation of the insulating sheath 24 of the microcable by means of two transverse metal connection drawers 14a, 14b, each provided with an inner end 141a, 141b shaped to perforate the microcable sheath 21 present in the connecting light 11, so as to make electrical contact between the ring 10 and the central conductor 23 of the microcable 21 via the drawers 14a, 14b.
- connection drawers comprise an inner end 141a, 141b of projecting shape and can slide respectively in guide tunnels 13a, 13b transverse to the ring 10, arranged between the periphery of the ring and the connecting lumen 11 .
- connection drawers 14a, 14b in the perforation position are preferably retracted inside the respective guiding tunnels 13a, 13b.
- the effective perforation of the insulating sheath 24 of the microcable 21 to be connected is achieved by pressing force by means of crimping jaws bearing on the surfaces 143a and 143b of the connection drawers 14a, 14b push.
- the system with two opposed connection drawers makes it possible to make the microcable / ring connection reliable, on the one hand, by a pincer effect on the microcable receiving opposite connection pressures and, on the other hand, by redundancy of the contact on the microcable.
- connection drawers 14a, 14b slide in the tunnels 13a, 13b along the same sliding axis AA passing through the center of the connection lumen 11, in order to orient the thrust surfaces 143a, 143b perpendicular to the movement of the crimping jaws.
- An alternative solution is to make parallel the push surfaces of the connection drawers, allowing to use a crimping equipment with parallel and non-concentric jaws.
- the Figure 5 shows a multipolar probe element comprising six rings, the first three 10 1 are connected to the same microcable, while the last three 2 2 are connected to another microcable due to a different orientation of the rings.
- the choice of the microcable connected for a given electrode is set by the angular positioning of the ring during pre-assembly of the probe as a whole.
- the angular sequence of stacking of the rings can be encoded on the mounting tool, the keying being obtained because the protrusion region of the connection drawers 14a, 14b must enter in a notch arranged on the tool.
- the alternative solution of the Figure 6 consists in stacking clusters of rings one above the other, the position of each ring 10 on a cluster being determined by the choice of microcable to connect.
- the alignment of the lights allows the simultaneous introduction in a single step of the microcables through all the rings, the latter then being detached from the cluster. It remains to position the rings longitudinally before the crimping operation.
- connection drawers 14a, 14b When the microcables are inserted, the projecting internal ends 141a, 141b of the connection drawers 14a, 14b are completely retracted inside the guiding tunnels 13a, 13b, thus avoiding any difficulty in introducing the microcables. since the connection lights 11 are then completely cleared.
- One or more temporary attachment zones are provided in the axial direction for example. These areas are intended to keep the drawers 14a, 14b in the open position during all ring manufacturing operations, control, and assembly of cables to the crimping stage. Under the force of the jaws, the temporary attachment zones are broken and no longer impede the sliding movement of the drawers in the tunnels 13a, 13b.
- the concentric crimping operation does not require angular identification of the assembly.
- a rapid visual inspection of production and / or final control makes it possible to identify the state of the system, namely "connected" state for electrodes without protuberance, or "unconnected” state for electrodes with one or two protuberances.
- a preferred method for producing rings 10 is the MICA Freeform process (registered trademark of Microfabrica, Inc.) for its specificities: extreme precision, integration of components, etc. Thanks to this technology by successive layers, the metal ring 10, the connection drawers 14a, 14b and the zones 144 of temporary attachment form a single piece.
- zones 18a, 18b and 18c on the periphery of the ring 10 are provided on the periphery of the ring.
- Figures 7a and 7b bearing longitudinal grooves 181 flush contained within the surface of the ring. These grooves 181, with a radius of at least 5 ⁇ m, are not through to maintain at each end of the ring 10 a cylindrical perimeter which guarantees the longitudinal sealing function of the electrode when laying a metal. heat-shrinkable collective outer sheath 30 shown in FIGS. Figures 8a, 8b and 8c .
- This collective sheath 30 avoids any discontinuity of global isolation and the creation of local stiffness gradients.
- Windows 31 are cut in the collective sheath 30 by laser ablation around stimulation surfaces, namely here the zones 18a, 18b and 18c of longitudinal grooving. Only these areas of grooving in contact with the tissues are stimulating.
- a metal ring 10 provided at each end of a chamfer 16a, 16b.
- This feature has the advantage of protecting the insulating sheaths 24 of the microcables from an abrasive contact with the outer edge of the ring. Indeed, under the action of the heat-shrinkable sheath 30, the three microcables can be held in position in their respective lumen over a greater length corresponding to the generatrix G of the connection lumen 11 shown on FIG. Figures 2a and 2b .
- These chamfers also make it possible to better manage the stiffness gradient ring / probe body.
- the chamfers 16a, 16b are made at the same time as the ring 10 according to MICA Freeform technology , which gives them the staircase profile that can be observed in the above figures.
- the countersink 17 is tangent to the three slots 11, 12a and 12b. This avoids too punctual contact against the edge of the ring 10, which may concentrate the stresses at a point of the insulating sheath 24 of the microcables and locally weaken the sheath.
- the stiffness gradient and the tightness of the structure can be further improved by the addition of a flexible adhesive seal 40 to the ends of the ring 10, under the collective sheath, as shown in FIGS. Figures 9a and 9b .
- This flexible seal 40 is inserted between the edges of the ring 10 and the insulation sheath of the unconnected microcables 22a, 22b, in the zone 15 with the largest diameter of the electrode passage apertures 12a, 12b.
- a polyurethane type glue is particularly well suited because of its high fluidity and ability to migrate in the small gaps by simple capillarity.
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
Claims (24)
- Multipolare Detektions-/Stimulationssonde zur Implantation in einem arteriellen oder lymphatischen Venennetz, die Folgendes aufweist:- mindestens zwei Mikrokabel (21, 22a, 22b), die jeweils aus einem massiven zentralen Leiter (23), der dazu bestimmt ist, mit einem Generator einer aktiven implantierbaren medizinischen Vorrichtung verbunden zu sein, und einer Hülle (24) aus einem isolierenden Polymermaterial bestehen, die den zentralen Leiter auf seinem Umfang und auf seiner Länge umgibt,- mindestens eine Detektions-/Stimulations-elektrode, die dazu bestimmt ist, elektrisch mit einem zentralen Leiter (23) eines Mikrokabels (21) verbunden zu sein und gegen eine Wand eines Zielgefäßes des arteriellen oder lymphatischen Venennetzes zu kommen, und- Mittel zum elektrischen Verbinden zwischen der Elektrode und einem zentralen Leiter,
und bei der:- der Außendurchmesser der Sonde maximal 2 French (0,66 mm) beträgt, und- die mindestens eine Elektrode einen zylindrischen Metallring (10) aufweist, der ein Längsloch (11) zum elektrischen Verbinden aufweist, das geeignet ist, ein Mikrokabel (21) aufzunehmen, das dazu bestimmt ist, mit dem Ring verbunden zu sein, und mindestens ein Lumen (12a, 12b) zum Durchqueren der Elektrode,
dadurch gekennzeichnet, dass- das Lumen (12a, 12b) zum Durchqueren der Elektrode geeignet ist, mindestens ein Mikrokabel (22a, 22b), das nicht mit dem Ring verbunden ist, aufzunehmen, und- die mindestens eine Elektrode auch Mittel zum elektrischen Verbinden durch Perforierung aufweist, die mindestens einen Führungstunnel (13a, 13b) quer zu dem Ring, der zwischen dem Umfang des Rings und dem Lumen zum elektrischen Verbinden eingerichtet ist, und einen Schieber zum elektrischen Verbinden (14a, 14b) aufweisen, der geeignet ist, in dem Führungstunnel zu gleiten und mit einem internen Ende (141a, 141b) versehen ist, das ausgebildet ist, um die Hülle (24) des Mikrokabels, das in dem Verbindungslumen vorliegt, zu perforieren, so dass ein elektrischer Kontakt zwischen dem Ring und dem zentralen Leiter dieses Mikrokabels über den installierten Verbindungsschieber hergestellt und in dem Führungstunnel eng gehalten wird. - Sonde nach Anspruch 1, bei der die Achse (AA) zum Gleiten des Verbindungsschiebers durch die Mitte des Verbindungslumens verläuft.
- Sonde nach Anspruch 1, die zwei einander gegenüberliegende Verbindungsschieber aufweist.
- Sonde nach Anspruch 1, bei der der Verbindungsschieber in Perforierungsposition vollständig in das Innere des Führungstunnels eingezogen ist.
- Sonde nach Anspruch 1, bei der das interne Ende des Verbindungsschiebers eine vorstehende Form hat.
- Sonde nach Anspruch 1, bei der das Verbindungslumen eine kreisförmige Öffnung mit einem Durchmesser gleich dem Durchmesser des mit dem Ring verbundenen Mikrokabels aufweist.
- Sonde nach Anspruch 1, bei der das mindestens eine Lumen zum Durchqueren der Elektrode eine kreisförmige Öffnung mit einem Durchmesser größer als der Durchmesser des nicht mit dem Ring verbundenen Mikrokabels aufweist.
- Sonde nach Anspruch 7, die eine zusätzliche isolierende Schutzhülle aufweist, die in das mindestens eine Lumen zum Durchqueren der Elektrode eingefügt ist.
- Sonde nach Anspruch 1, bei der die kreisförmige Öffnung des mindestens einen Lumens zum Durchqueren der Elektrode in einem zentralen Bereich des Rings einen Durchmesser gleich dem Durchmesser der kreisförmigen Öffnung des Verbindungslumens aufweist.
- Sonde nach Anspruch 1, bei der das mindestens eine Lumen zum Durchqueren der Elektrode geeignet ist, eine Mehrzahl von Mikrokabeln, die nicht mit dem Ring verbunden sind, aufzunehmen.
- Sonde nach Anspruch 1, die mindestens einen Bereich (144) zum vorübergehenden Befestigen zwischen dem Verbindungsschieber und dem Ring (10) aufweist.
- Sonde nach Anspruch 1, die am Umfang des Rings mindestens einen Bereich (18a, 18b, 18c) mit nicht durchgehenden Längsrillen (181) aufweist.
- Sonde nach Anspruch 12, bei der der Radius der Längsrillen mindestens 5 µm beträgt.
- Sonde nach Anspruch 1, bei der die Sonde mit einer kollektiven Außenhülle (30) aus wärmeschrumpfendem isolierendem Material abgedeckt ist, wobei Fenster (31) in dieser Hülle um Oberflächen (18a, 18b, 18c) zur Detektion/Stimulation des Rings ausgeschnitten sind.
- Sonde nach Anspruch 14, bei der die Detektions-/Stimulationsoberflächen Bereiche sind, die Längsrillen (181) tragen.
- Sonde nach Anspruch 1, bei der eine biegsame Klebstoffdichtung (40) an den Enden des Rings aufgebracht ist.
- Sonde nach Anspruch 16, bei der der biegsame Klebstoff ein Polyurethan ist.
- Sonde nach Anspruch 1, bei der eine Abfasung (16a, 16b) an jedem Ende des Rings eingerichtet ist.
- Sonde nach Anspruch 1, bei der eine Stirnsenkung (17) an jedem Ende des Rings eingerichtet ist.
- Sonde nach Anspruch 19, bei der die Stirnsenkung tangierend zu den Lumen des Rings ist.
- Sonde nach Anspruch 1, bei der die Mittel zum elektrischen Verbinden einen Verbindungsstempel (14), der in dem Ring ausgeschnitten ist, aufweisen.
- Sonde nach Anspruch 1, bei der die Mittel zum elektrischen Verbinden ein Perforierungsorgan (14') das mit dem Ring in ein und demselben Prägeabschnitt kombiniert ist, aufweisen, wobei das Perforierungsorgan und der Ring aus zwei Werkstoffen mit unterschiedlicher Steifigkeit bestehen.
- Sonde nach Anspruch 1, bei der die Mittel zum elektrischen Verbinden ein Element (14"; 14"') zum alleinigen beweglichen Verbinden des Typs Gabel aufweisen.
- Sonde nach Anspruch 23, bei der das Verbindungselement (14"') ein System zum Anclipsen in dem Verbindungslumen aufweist.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR1255544A FR2991882A1 (fr) | 2012-06-13 | 2012-06-13 | Structure d'electrode pour une microsonde multipolaire de detection/stimulation destinee a etre implantee dans un vaisseau cardiaque ou cerebral |
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EP2674190A1 EP2674190A1 (de) | 2013-12-18 |
EP2674190B1 true EP2674190B1 (de) | 2014-12-17 |
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EP20120194864 Active EP2674190B1 (de) | 2012-06-13 | 2012-11-29 | Elektrodenstruktur für eine multipolare Detektions-/Stimulationsmikrosonde zur Implantation in ein Herz- oder Hirngefäß |
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US (1) | US9067058B2 (de) |
EP (1) | EP2674190B1 (de) |
FR (1) | FR2991882A1 (de) |
Cited By (1)
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US11426575B2 (en) | 2018-07-06 | 2022-08-30 | Sorin Crm Sas | Connection method for connecting an isolated micro-conductor |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2664354B1 (de) | 2012-05-16 | 2015-09-16 | Sorin CRM SAS | Medizinische Leitung mit einer Ringelektrode zur Implantation in ein Herz- oder Hirngefäß und ein Verfahren zu deren Herstellung |
US11179566B2 (en) * | 2014-06-03 | 2021-11-23 | Cochlear Limited | Fitting method using channels |
EP3185248B1 (de) | 2015-12-23 | 2019-11-06 | Heraeus Deutschland GmbH & Co. KG | Verfahren zur elektrischen kontaktierung einer beschichteten leitung mit einem teilchen |
EP3185363B1 (de) | 2015-12-23 | 2020-02-12 | Heraeus Deutschland GmbH & Co. KG | Verfahren zur elektrischen kontaktierung einer beschichteten leitung mit einer schicht |
EP3542853B1 (de) | 2018-03-23 | 2021-05-05 | Heraeus Deutschland GmbH & Co. KG | Herstellungsverfahren für eine mikroleitung |
EP3542854B1 (de) | 2018-03-23 | 2021-06-30 | Heraeus Deutschland GmbH & Co. KG | Herstellungsverfahren für ein multielektrodensystem |
DE102018221355B4 (de) | 2018-12-10 | 2022-08-18 | Heraeus Deutschland GmbH & Co. KG | Kontaktierungsverfahren und System |
DE102018221635B8 (de) | 2018-12-13 | 2020-08-06 | Heraeus Deutschland GmbH & Co. KG | Kontaktierungsverfahren und System |
DE102019218477B4 (de) * | 2019-11-28 | 2022-01-05 | Heraeus Deutschland GmbH & Co. KG | Mikro-Lead für direktionale Stimulation |
DE102020118373B4 (de) | 2020-07-13 | 2023-11-02 | Heraeus Deutschland GmbH & Co. KG | Mehrlagige Ringelektrode mit mehreren Öffnungen und niedrigschmelzenden Innenstrukturen |
DE102020118372B3 (de) | 2020-07-13 | 2021-09-02 | Heraeus Deutschland GmbH & Co. KG | Mehrlagige Ringelektrode mit mehreren Öffnungen und Diffusionszwischenschicht |
DE102020118371A1 (de) | 2020-07-13 | 2022-01-13 | Heraeus Deutschland GmbH & Co. KG | Mehrlagige Ringelektrode mit mehreren Öffnungen |
DE102020123651B4 (de) | 2020-09-10 | 2023-11-09 | Heraeus Deutschland GmbH & Co. KG | Mehrlagige Ringelektrode mit Klemme |
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FR1254548A (fr) | 1960-01-13 | 1961-02-24 | Appareil destiné à transmettre l'énergie motrice d'un véhicule automobile à divers récepteurs mécaniques | |
US4387727A (en) * | 1981-03-30 | 1983-06-14 | Medtronic, Inc. | Coaxial service kit |
AU559339B2 (en) * | 1982-12-20 | 1987-03-05 | Telectronics Pty. Limited | Electrical connection |
US5387247A (en) | 1983-10-25 | 1995-02-07 | Sorin Biomedia S.P.A. | Prosthetic device having a biocompatible carbon film thereon and a method of and apparatus for forming such device |
IT1196836B (it) | 1986-12-12 | 1988-11-25 | Sorin Biomedica Spa | Protesi in materiale polimerico con rivestimento di carbonio biocompatibile |
US6660935B2 (en) * | 2001-05-25 | 2003-12-09 | Gelcore Llc | LED extrusion light engine and connector therefor |
US7503893B2 (en) | 2006-02-03 | 2009-03-17 | Cannuflow, Inc. | Anti-extravasation sheath and method |
US20080114230A1 (en) * | 2006-11-14 | 2008-05-15 | Bruce Addis | Electrode support |
FR2910818A1 (fr) | 2006-12-28 | 2008-07-04 | Ela Medical Soc Par Actions Si | Circuit de commutation controlee d'electrodes multiplexees, pour un dispositf medical implantable actif |
US7364479B1 (en) * | 2007-02-02 | 2008-04-29 | Pacesetter, Inc. | Crimp connector for connecting a conductor cable and electrode of an implantable cardiac electrotherapy lead |
US8406896B2 (en) * | 2009-06-29 | 2013-03-26 | Boston Scientific Neuromodulation Corporation | Multi-element contact assemblies for electrical stimulation systems and systems and methods of making and using |
EP2455131B1 (de) | 2010-11-19 | 2013-01-23 | Sorin CRM SAS | Sonde zur Stimulation einer linken Herzkammer, die in das Netz der Herzkranzgefäße implantiert werden kann |
-
2012
- 2012-06-13 FR FR1255544A patent/FR2991882A1/fr active Pending
- 2012-11-29 EP EP20120194864 patent/EP2674190B1/de active Active
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- 2013-06-12 US US13/916,444 patent/US9067058B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11426575B2 (en) | 2018-07-06 | 2022-08-30 | Sorin Crm Sas | Connection method for connecting an isolated micro-conductor |
Also Published As
Publication number | Publication date |
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US9067058B2 (en) | 2015-06-30 |
EP2674190A1 (de) | 2013-12-18 |
FR2991882A1 (fr) | 2013-12-20 |
US20130338745A1 (en) | 2013-12-19 |
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